CVE-2026-59724
socketio socket.io, engine.io 취약점
Socket.IO enables bidirectional and low-latency communication for every platform. From 6.5.0 before 6.6.7, Engine.IO servers with WebTransport enabled can resolve a crafted session ID such as __proto__ through an inherited property of the clients object during WebTransport upgrade handling, causing a TypeError and denial of service. This issue is fixed in version 6.6.7.
- 대응 우선순위
- 점검
- CVSS
- 7.5
- EPSS
- 0.34% 백분위 26.0% · 2026.07.15 기준
- CISA KEV
- 미등록
- 조치 기한
- -
- 공개일
- 2026.07.09